be assed if i can find the VIN display the autospeed article mentioned!
You dont have to actually start the engine to use diag mode - just have mode and up pressed as you turn the key to ON (be that from OFF or ACC), and release once the ignition is on.
press up and down together to exit back to normal mode.
my take on the first number (990609) is the build date for the firmware that drives the trip computer - a mates VX II showed the same number as my VT II from memory
PN is definately not your radio pin (which button for 7??!?)... could it be Part Number? Those with the Digi speedo enabled in normal trip mode have a different number to those without - mine is Pn7563 (VT SII), from memory a friends was Pn7562 (VT II ex coppers) and they hav digi speedo in normal mode ... anyone?
The first V display is to test the up down and mode button circuits - press the up or down buttons, and the --- changes to -d- or --u or and the respective circuit voltage is shown.
The next V display is the main system voltage - 12v before start, 14v after.
the next 2 V displays .. who knows... the 5.0 could be a reference signal for the data bus maybe? anyone?
the 2 fuel displays speak for themselves - combined with the speedo reading they let the computer work out distance to empty. also helpful for spotting when your sender unit is playing up ... mine sometimes jumps from 15L up to 50 when parked in certain angles etc which makes the damn thing think its nearly full again!
i almost always run mine on Temp display - good way to know if your cooling system has shat itself
Interesting to watch the temp as it warms up ... mine gets to 98-99, then dives to 87 as the thermo lets the colder water in, then wanders up and down a bit more before settling on 91 for a while until the hot/cold in the system evens out. most i've seen on the readout is 107 haulin 4 people and a dirty on a trailor up a really long hill on a hot day..
speed and taco.. duh!
the T01 display where you can press up and down shows lots of stuff... some show "On" or a number or letter... anyone have any detailed info?
as for the the "normal mode" displays for distance to go etc - see the owners manual for how to turn the all trip computer displays on or off and turn on/off the overspeed warning. you can also preset the intial km's for the distance to go function.